As you probably know, their are three classes of Bluetooth radios: 1, 2 and 3. Class 1 has a power output of 100mW, so 100 meters is certainly doable. However, almost all Bluetooth gadgets are Class 3, which is only 1mW of power. That's the one that only does about 25 to 30 feet.

Dude, Mr. Mom came out when I was a kid...I've probably smoked a couple of tons of ganj since then...